[OpenLayers-Users] Problems implementing WFS

[Alexandre Dube]

Hi,

  Yes, this looks like a namespace problem.  With firebug, go to the 
lib/OpenLayers/Format/XML.js file, in the readNode function at line :

var group = this.readers[this.namespaceAlias[node.namespaceURI]];

and put a breakpoint there.  You'll understand what's going on and also 
what namespace you need to define.

Hope this helps,

Alexandre

Maxime Phaneuf wrote:
> Hi guys
>
> I've got the same problem as Hugo. My WFS layer would not appear on the map,
> even though I've got a ok server response.
>
> My layer looks like this:
>      wfs = new OpenLayers.Layer.Vector("France", {
>                 strategies: [new OpenLayers.Strategy.BBOX(), saveStrategy],
>                 protocol: new OpenLayers.Protocol.WFS({
> 					version:       "1.0.0",
> 					url:           "http://mydomain/cgi-bin/tinyows",
> 					featureType:   "france_dept",
> 					srsName:       "EPSG:24582",
> 					featurePrefix: "tows",
> 					//featureNS:     "http://mydomain",
> 					geometryName:  "the_geom",
> 					schema:       
> "http://mydomain/cgi-bin/tinyows?service=WFS&version=1.0.0&request=DescribeFeatureType&TypeName=france_dept",
> 				})
>             });
>
> Define like this, the layer will show up, but any modification can't be
> saved. When I take off the comments of featureNS, it will not show up, so I
> suppose it is an error caused by the namespace. 
>
> I've tried putting a breakline where you told but it doesn't even stop when
> I reload the page.
> What is the correct value to put for featureNS? Or do you see anything else
> wrong with my layer definition?
>
> Thank you
> Maxime Phaneuf
>
>
> Hugo-2 wrote:
>   
>> Hi Alexandre,
>>
>> Thanks for your help. Indeed it was a problem with the namespace. A dummy
>> mistake :)
>>
>> Kind regards,
>>
>> Hugo Martins
>>
>> On Tue, Jun 30, 2009 at 1:00 PM, Alexandre Dube <adube at mapgears.com>
>> wrote:
>>
>>     
>>> Hi Hugo,
>>>
>>>  This looks like a feature namespace problem.  See the Format.XML
>>> readNode
>>> function, put a break point at line :
>>>
>>> var group = this.readers[this.namespaceAlias[node.namespaceURI]];
>>>
>>>  This might be the problem,
>>>
>>> Alexandre
>>>
>>> Hugo wrote:
>>>
>>>       
>>>> Hello all,
>>>>
>>>> I'm having troubles to implement a vector layer with WFS protocol. From
>>>> firebug i can see that the attributes from the layer are extracted,
>>>> however
>>>> no vector feature is displayed in the map.
>>>> DO you have any suggestions??? My code is as follows:
>>>>
>>>> var saveStrategy = new OpenLayers.Strategy.Save();
>>>>        var wfs2 = new OpenLayers.Layer.Vector(
>>>>            "ExplorWFS2",
>>>>            {
>>>>                strategies: [new OpenLayers.Strategy.BBOX(),
>>>> saveStrategy],
>>>>                projection: wgs,
>>>>                protocol: new OpenLayers.Protocol.WFS({
>>>>                    version: "1.1.0",
>>>>                    srsName: "EPSG:4326",
>>>>                    url: "http://isegi.dyndns.org:8080/geoserver/wfs?",
>>>>                    featureNS :  "http://isegi.dyndns.org:8080/sigla",
>>>>                    featureType: "explor",
>>>>                    geometryName: "the_geom",
>>>>                    schema: "
>>>> http://isegi.dyndns.org:8080/geoserver/wfs/DescribeFeatureType?version=1.1.0&typename=sigla:explor<
>>>> http://isegi.dyndns.org:8080/geoserver/wfs/DescribeFeatureType?version=1.1.0&typename=sigla:explor
>>>>         
>>>>> ",
>>>>>           
>>>>                    format: new OpenLayers.Format.WFST.v1_1_0({
>>>>                        featureType: 'explor',
>>>>                        featureNS: "http://isegi.dyndns.org:8080/sigla",
>>>>                        featurePrefix: 'sigla',
>>>>                        geometryName: 'the_geom'
>>>>                    })
>>>>                })              }
>>>>        );
>>>>
>>>> I have tried these code with and without the format option.
>>>>
>>>> If i simply use the following code, everything goes perfect and vector
>>>> features are displayed in the map:
>>>>
>>>> var wfs = new OpenLayers.Layer.WFS(
>>>>            "ExplorWFS",
>>>>            "http://isegi.dyndns.org:8080/geoserver/wfs?",
>>>>            {typename: 'sigla:explor'},
>>>>            {
>>>>                featureVersion: "1.0.0",
>>>>                typename: 'explor',
>>>>                featureNS: '"http://isegi.dyndns.org:8080/sigla',
>>>>                geometryName: "the_geom",
>>>>                projection: wgs,
>>>>                extractAttributes: true,
>>>>                schema: "
>>>> http://isegi.dyndns.org:8080/geoserver/wfs/DescribeFeatureType?version=1.1.0&typename=sigla:explor<
>>>> http://isegi.dyndns.org:8080/geoserver/wfs/DescribeFeatureType?version=1.1.0&typename=sigla:explor
>>>>         
>>>>> "
>>>>>           
>>>>            }
>>>>        );
>>>>
>>>> Thanks in advance.
>>>> Kind regards,
>>>>
>>>> Hugo Martins
>>>> ------------------------------------------------------------------------
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at openlayers.org
>>>> http://openlayers.org/mailman/listinfo/users
>>>>
>>>>
>>>>         
>>> --
>>> Alexandre Dubé
>>> Mapgears
>>> www.mapgears.com
>>>
>>>
>>>       
>> _______________________________________________
>> Users mailing list
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>> http://openlayers.org/mailman/listinfo/users
>>
>>
>>     
>
>   


-- 
Alexandre Dubé
Mapgears
www.mapgears.com